fix(deps): bump tonlibjson-sys/ton-testnet from e060515 to fe46f0e

Bumps [tonlibjson-sys/ton-testnet](https://github.com/ton-blockchain/ton) from `e060515` to `fe46f0e`.
- [Release notes](https://github.com/ton-blockchain/ton/releases)
- [Commits](ton-blockchain/ton@e060515...fe46f0e)

---
updated-dependencies:
- dependency-name: tonlibjson-sys/ton-testnet
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]